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R603 UPDATE-29 6/07/94 <br /> Dichloroethane (DCE) retention time 2 079 minutes, <br /> Trichloroethylene (TCE) retention time 3 . 023 minutes and <br /> Tetrachloroethylene (PCE) - retention time 3 75 minutes. Also <br /> water samples from MW1 and MW6 were tested using EPA method 8240 <br /> and were below detection limits for these compounds, see Update <br /> Status Report 21, September, 1993 And water samples obtained on <br /> March 4 , 1994 from MW1, MW6, MW9 and MW11 were tested using EPA <br /> Method 8010 and were below detection limits for these compounds . <br /> 5 . 0 TIME FRAME <br /> June, 1994 Monthly air sampling and quarterly <br /> ground water sampling/gauging <br /> 6 . 0 HEALTH AND SAFETY <br /> This site is being treated as a class D site, normal common sense <br /> is to be used <br /> 7 . 0 LIMITATIONS <br /> The conclusion and recommendations presented in this report are <br /> based upon the following <br /> A The exploratory test borings drilled at the site . <br /> 3 The Bouwer and Rice Slug test <br /> C The Vapor Extraction Source Test <br /> D The observations of field personnel . <br /> E The results of laboratory analysis performed by a State <br /> certified laboratory <br /> E Referenced documents <br /> F Specifications supplied by "REMOX" for the Authority to <br /> Construct Permit <br /> G Our understanding of the regulations of theStockton.State of <br /> CalAfornia, San Vo a�ui n County a nd City of 4]t Pub lJll. <br /> The services performed by Western Geo-Engineers, a corporation <br /> under California Registered Geologist #3037 and/or Contractors <br /> License #513857, have been conducted in a manner consistent with <br /> the level of care and skill ordinarily exercised by members of <br /> our profession currently practicing under similar conditions in <br /> the State of California and the Stockton area Our work and/or <br /> supervision of remediation and/or abatement operations, active or <br /> preliminary, at this site is in no way meant to imply that we <br /> are owners or operators of this site Please note that known <br /> PAGE 4 <br />